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Remove unwrap from match_trait_method

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Unused_IO_amount relies on `match_trait_method` in order to match
trait methods that exist in Tokio traits as the corresponding symbols don't exist.

With this commit we remove the unwrap that may have caused 12366.
Note: author (@m-rph) and @GuillaumeGomez couldn't replicate 12366.
This commit is contained in:
Quinn Sinclair 2024-03-24 11:00:09 +01:00
parent 660b058ba2
commit 94fe2fac63
1 changed files with 4 additions and 3 deletions
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7
clippy_utils/src/lib.rs
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@ -298,9 +298,10 @@ pub fn is_ty_alias(qpath: &QPath<'_>) -> bool {
/// Checks if the method call given in `expr` belongs to the given trait.
/// This is a deprecated function, consider using [`is_trait_method`].
pub fn match_trait_method(cx: &LateContext<'_>, expr: &Expr<'_>, path: &[&str]) -> bool {
let def_id = cx.typeck_results().type_dependent_def_id(expr.hir_id).unwrap();
let trt_id = cx.tcx.trait_of_item(def_id);
trt_id.map_or(false, |trt_id| match_def_path(cx, trt_id, path))
cx.typeck_results()
.type_dependent_def_id(expr.hir_id)
.and_then(|defid| cx.tcx.trait_of_item(defid))
.map_or(false, |trt_id| match_def_path(cx, trt_id, path))
}
/// Checks if a method is defined in an impl of a diagnostic item